kernel/tools/testing/selftests/kvm/lib/loongarch/exception.S, branch linux-rolling-stable Hosts the 0x221E linux distro kernel. https://universe.0xinfinity.dev/distro/kernel/atom?h=linux-rolling-stable 2025-11-27T03:00:18Z KVM: LoongArch: selftests: Add system registers save/restore on exception 2025-11-27T03:00:18Z Bibo Mao maobibo@loongson.cn 2025-11-27T03:00:18Z urn:sha1:985a96983bedf04fa61315e68806f3468450c8a1 When system returns from exception with ertn instruction, PC comes from LOONGARCH_CSR_ERA, and CSR.CRMD comes LOONGARCH_CSR_PRMD. Here save CSR register CSR.ERA and CSR.PRMD into stack, and then restore them from stack. So it can be modified by exception handlers in future. Signed-off-by: Bibo Mao <maobibo@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> KVM: selftests: Add core KVM selftests support for LoongArch 2025-05-20T12:20:26Z Bibo Mao maobibo@loongson.cn 2025-05-20T12:20:26Z urn:sha1:2ebf31d59f583449422f4b2dad59b0130e750117 Add core KVM selftests support for LoongArch, it includes exception handler, mmu page table setup and vCPU startup entry support. Signed-off-by: Bibo Mao <maobibo@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>